I back my blogs using a plugin WP DB Backup up. I will always restore my website to the 13, if anything happens. I use WP Security Scan free plugin to scan my blog frequently and WordPress Firewall to block requests to repair hacked wordpress site.
I protect an access to important files on the blog's server by putting an index.html file in the particular directory, that hides the files from public view.
This is very handy plugin, protecting you against brute-force password-crack attacks. It keeps track of the IP address of every failed login attempt. You can configure the plugin to disable login attempts when a certain number of failed attempts is reached.
You could also get an SSL Encyption Security to your WordPress blogs. The SSL Security makes secure and encrypted communications with your site. You may also keep history of communication and the all the cookies so that all transactions are recorded. Be certain all your blogs get click over here now SSL security for protection from hackers.
Always bear in mind the security of your sites depend on how you handle them. Make certain that you follow these strategies to prevent hacks and exploits on sites and click to find out more your own blogs.